User Manual

Command Reference Port Commands
12-62
envstring
Sets up the connection environment before the session is started. For a
description of all available environment strings, see Appendix A, Environment
Strings. If no environment string is specified with the TCP parameter, the
connection will default to a Telnet connection.
Examples
Local>> DEFINE PORT 5 DEDICATED 192.0.1.221
Local>> DEFINE PORT 2 DEDICATED irvine:+D
See Also Connect, page 12-18; Set/Define Ports Preferred, page 12-71; Define Ports
PPPdetect, page 12-75; Set/Define Ports SLIPdetect, page 12-79; Show/
Monitor/List Ports, page 12-88; Setting Session Characteristics, page 8-6
12.6.21 Define Ports Dialback
Turning on Dialback causes the SCS to check the dialback table (see Set/Define Dialback) each time a user
logs in. If the entered username is not in the table, the port is logged out. If the username is in the table, the
port is logged out and the SCS sends the dialback string to the port and awaits a second login. Typically, the
dialback string will cause the modem attached to the port to call the user back at a certain telephone number
for security reasons. Ports with dialback enabled have a 30-second time limit for entering the username
when logging in.
In order to use Dialback functionality, modem control must be enabled, and a modem profile must be
associated with the port. When Dialback is enabled, Modem Control is enabled by default. However,
disabling Dialback does not disable Modem Control; Modem Control must explicitly be disabled if so
desired.
Restrictions Requires privileged user status.
Parameters PortList/All
Specifies a particular port or group of ports, or all ports. Port numbers should
be separated with commas (for lists) or dashes (for ranges).
Note: In the absence of a PortList or the All parameter, the configuration will affect the
current port only.
Examples Local>> DEFINE PORT 3 DIALBACK ENABLED
See Also Set/Define Dialback, page 12-167; Show/Monitor/List Dialback, page 12-179;
Define Ports Modem Control, page 12-97; Define Ports Modem Type, page
12-105; Show/Monitor/List Ports, page 12-88; Dialback, page 8-12; Dialback,
page 11-6
DEFINE PORTS
PortList
ALL
DIALBACK
ENABLED
DISABLED
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